{"id":"F2008L03279","name":"AD/DHC-1/10 - Superseded by AD/DHC-1/15 - CANCELLED","slug":"ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120036,"registerId":"commonwealth-F2008L03279-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"De Havilland DHC-1 (Chipmunk) Series Aer","sectionType":"division","heading":"De Havilland DHC-1 (Chipmunk) Series Aeroplanes","content":"### De Havilland DHC-1 (Chipmunk) Series Aeroplanes\n\n| AD/DHC-1/10 | Superseded by AD/DHC-1/15 | 10/2008 |\n| ----------- | ------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                               |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 25 September 2008.                                                                               |\n| Background:  | This AD is cancelled, superseded in 1962 by cancelled AD/DHC-1/15. See cancelled AD/DHC-1/15 for background information. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n15 August 2008","sortOrder":0},{"sectionNumber":"AD/DHC-1/10","sectionType":"part","heading":"AD/DHC-1/10","content":"## AD/DHC-1/10","sortOrder":1},{"sectionNumber":"Superseded by AD/DHC-1/15","sectionType":"part","heading":"Superseded by AD/DHC-1/15","content":"## Superseded by AD/DHC-1/15","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2091},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The legislation performs exactly its intended administrative function: formally cancelling a long-superseded airworthiness directive. The scope remains limited to the procedural removal of AD/DHC-1/10 from the active register of aviation safety requirements."},"complexity_factors":["Single operative provision (cancellation notice only)","No defined terms or interpretation section","No conditional logic or exceptions","Extremely brief (under 50 words of substantive content)","No legislative cross-references to primary legislation"],"plain_english_summary":"This document formally **cancels** an old airworthiness directive (AD/DHC-1/10) that applied to **De Havilland DHC-1 Chipmunk** aircraft — a type of vintage two-seat training plane.\n\n**What it does:**\n- States that AD/DHC-1/10 is officially cancelled as of **25 September 2008**.\n- Confirms this directive was actually superseded back in **1962** by another directive (AD/DHC-1/15), which has also since been cancelled.\n\n**Who it affects:**\n- Owners and operators of De Havilland Chipmunk aircraft (mostly historic aviation enthusiasts and museums).\n- Maintenance engineers who work on these planes.\n\n**Why it matters:**\nThis is housekeeping. It formally removes an obsolete safety rule from the books, clarifying that the requirements in the original 1962 directive no longer apply. Anyone looking up historical safety rules for Chipmunks will see this directive is defunct and should check current regulations instead."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled","history":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled/history","analysis":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled/analysis","conflicts":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled/conflicts","importantCases":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled/important-cases","documents":"/api/acts/ad-dhc-1-10-superseded-by-ad-dhc-1-15-cancelled/documents"}}